Asexual propagules are the dominant means of propagation in most submerged macrophytes. To improve the understanding of how water nutrient concentrations and population density influence the turion production of Potamogeton crispus L., the turions were planted in mesocosms with three water nutrient conditions (ambient lake water, high P and high N) and two plant density levels (4 and 15 turions...

There is substantial diversity in Achillea biebersteinii plants in Iran. It has considerable different biological activities including antibacterial, antifungal, antioxidant, insecticidal, herbicidal and wound healing. Research improvement for medicinal plants depends on the available genetic diversity. The assessment of genetic variability could increase the information for breeding programs. ...

in order to study genetic diversity in 178 accessions of lentil (lens culinaris medik) originated from warm climate regions of iran, this experiment was conducted in 2009 at research farm of the national plant gene bank of iran in karaj. experimental design was an augmented experiment with six blocks and each block containes 30 accessions. accessions were compared with promising lines including...

to determine the association between genetic parameters and traits in chickpea (cicer arietinum l.) genotypes, a field experiment was conducted with 17 chickpea genotypes using a randomized complete block design with four replications at the ilam agricultural and natural resources research center in the 2004 growing season. genetic parameters including genetic, environmental and phenotypic vari...

Abstract This study aimed to explore and improve the different economic values of Pinus koraiensis (Siebold Zucc.) by examining variations in 6 growth traits 9 physicochemical wood properties among 53 P. half-sib families. Growth assessed included height, diameter at breast volume, degree stem straightness, form, branch number per node, while density, fiber length width, width ratio, cellulose,...

Leaves and absorptive roots (i.e., first-order root) are above- and belowground plant organs related to resource acquisition; however, it is controversy over whether these two sets of functional traits vary in a coordinated manner. Here, we examined the relationships between analogous above- and belowground traits, including chemical (tissue C and N concentrations) and morphological traits (thi...

Background: Polysubstance use as a severity index in those with abuse disorder is associated with various psychological, social, cultural, and genetic factors. This research was done to examine the predictive role of personality traits, personality functions, traumatic life events, and emotion regulation difficulties in polysubstance use and severity of dependence. Method: A total of 300 subje...